Question

A train's velocity is slowly decreasing as it approaches a station. About 1 km before it reaches the station, several stowaways jump off the train. What happens to the amount of acceleration if the force remains constant? Assume the train is traveling in the positive direction.

Answer 1

It will become less negative

Step-by-step explanation:

When a train moves in a direction with decreasing velocity , then it is for sure than acceleration is also decreasing. With stowaways in between before 1 KM of completion of the journey will bring the vehicle in a situation where it will have negative acceleration. Now it is given that force remains same , then with constant mass it is the acceleration which has to increase in order to justify the equation

`F = m*a`

Since the acceleration was already negative, an increase in acceleration will make it less negative